Top Definition
To drink alcohol in surplus amounts with no respect for one's appearance, coherency, and personal safety until inevitably vomiting and passing out.
"Man I was so fucked up last night, i was definitely rob drunk."

"Dude, you were rob drunk last night."
by PallMall May 13, 2010
To drink alcohol in surplus amounts with no respect for one's appearance, coherency, and personal safety until inevitably vomiting and passing out. If with a woman, to be Rob Drunk gives you a 0% chance of intercourse.
"Man I was so fucked up last night, i was definitely rob drunk."

"Dude, you were rob drunk last night."
by PallMall May 13, 2010
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